And john dayis



(No Model.) n

H. MGGUE & J. DAVIS.

Brlok Klln Patented March Y22, 1881.

, INVENTOR:

BY 6cyl/f' d@ ATTORNEYS.

WITNEssEs i Io jectionable in many respects.

"UNITED STATES PATENT OFFICE..

HENRYMCOUE, OE KANSAS CITY, MISSOURI, AND JOHN DAvIs, OE TERRE HAUTE, INDIANA.

Belem-Knus.4

SPECIFICATION forming part of Letters PatentY No. 239,053, dated March 22, 1881.

Application ledJ une 23, 1880. (No model.)

To all whom it may concern Be it known that we, HENRY MCCUE, of

which openingsvary in size according to the range of heat, and above these openings dthe Kansas City, in the county of Jackson and kiln-walls are grooved vertically to a sufficient State of Missouri, and JOHN DAVIS, ot' Terre height above the` coping for receiving the Haute, in the county of Vigo and State of ln- 1 dampers c. The openings d are surrounded by diana, have invented a new and useful Iml fire-linings, and between the fire-linings of the provement in Brick-Kilns, of which the following is a specification.

Brick-kilns as heretofore constructed are ob- Such objections may be stated, briefly, as follows: The vaultwalls usually occupy the full length of the kiln, thereby requiring skilled labor for framing the timbers to be anchored to the kilnwalls for the roof. This also involves the use of considerable material and is expensive. The

`compartment-walls between each set of openchute to lill the openings and regulate the` heat, such method is unhandy and unreliable. I The Object of our invention is to construct a kiln free from such objections; and ourinvention consists in certain novel 4features of construction, which will be more particularly described hereinafter with reference to the acf companying drawings.

In the drawings, Figure l is a side elevation of a kiln, one furnace i only being shown, and the base being partially removed to show the construction more clearly. Fig. 2 is a vertical cross-section on line :c m of Fig. l. Fig. 3 is a cross-section ofthe furnace on line y y of Fig. 2. Fig. 4 is a cross-section of the vault on line z z of Fig. 2.

Similar letters of reference indicate corresponding parts.

A is the kiln, composed of side walls, a a, end walls, b, and base c, and built in any desired form and of the desired size. Thesewalls are made of brick or other suitable material, and thicker at the base than in the upper portion. Through the base of the side walls there are openin gs d at regular distances apart,

several openin gs air-spaces j' are formed in the kiln walls, which spaces communicate with each other and with the passages g that open to the outer air. The amount of air admitted to the spaces f may be regulated by using a bat of soft material in the openings g, and the heated air may escape through openings at` Y cold corners, strengthening the walls by throwing the heated air ou-tward, preventing loss ot' heat.

The side walls, a, are formed at the outer side with pillars t', which are placed at suitableinter-vals to include three or more openings, d. Posts It, of suitable si-ze,and of a length toextend from five to seven feet above the walls, are set in the ground and securely fastened to the pillars i by bolts bedded in the masonry, which posts are braced loy plates la and crossrods l, that are secured to the upper ends of the posts. The walls and roof are thus substantially supported. The end walls are supported by posts Z' in the same manner. The passage-way for removal of the articles when burned will be between the two center posts of the end walls, and will be temporarily lled with suitable material while the kiln is in opcration. The posts Z' will be placed to support the illin g as well as the permanent wall, and the posts are braced by rods m from the plates m to plates 7c.

The combustion-vaults B and furnaces C are built outside of the side walls, a, between the posts 7c. Each vault is built rm'ly to the basewalls of the kiln to include three or more openings, d, and are uniformly arranged at opposite sides of the kiln. The side walls, n, of the vaults are inade ,hollow and provided with inlets n for admission of air to the space, which the side Walls, under the arch,there are sightholes o, and in the front walls there are sightholes o', through which observation may be made to the interior of the kiln through Openings d.

The walls of the furnace C are constructed in front of the vault B. The side walls, p, are hollow, with openings to the outer air and escape-holes to the interior of the furnace, as shown in Fig. 3. In the end walls, q, under the arch, there are si ght-holes g. There are also sight-holes in the doors 1' of the furnace, which holes are provided with swinging wickets s', by which the holes may be closed. The side walls, p, are sustained by posts t, that are planted in the ground and connected at their upper ends by a cross-bar, t. To this crossbar t `notched standards u are secured, and upon the side of the kiln are hun g the damperlevers t, that engage with the notched standards u. The dampers e are hung from levers 'v by adjustable rods or chains, and may be made of metal, fire-clay, or other suitable makiln is convenient for use, and the progress of the Work may be readily observed.

This kiln may be used for firing tiling, brick, or earthenware of any kind. The pillars i protect the supporting-posts from the effects of the heat. The door-sills and grate-bars of the furnace are constructed so as to permit their renewal, as required. By the use of the. dampers the heat is placed under full control of the operator, and by closing them while adding fuel cold currents will be prevented from entering the kiln. v

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In a kiln, the combination, with Walls a and base c, provided with openings d at regular intervals, of the dampers e, the air-spaces f between the tire-linin gs, and the passages g, having a bat of soft material, as and for the purpose described.

, 2. In kilns, the corner-llings h, combined with the walls a b, substantially as and for the purposes specified.

HENRY MCCUE. JOHN DAVIS. Witnesses:

JOHN KENTRICK, H. M. J OHNsON, WILLIAM D. BOORD, B. F. BEAGIN. 

